<!-- index.html -->
<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>聊天界面</title>
</head>
<body>
    <h1>请输入要说的话</h1>
    <form action="/hello" method="POST">
        <label for="name">请输入要说的话:</label>
        <textarea id="name" name="name" rows="20" cols="70" required style="font-size: 40px;"></textarea>
        <button type="submit">发送</button>
    </form>
</body>
</html>
